title: Neurochemical characterization of extrinsic innervation of the guinea pig rectum.
mesh_terms: D000344:Afferent Pathways / Q000737:chemistry; D000818:Animals; D005260:Female; D005725:Ganglia, Autonomic / Q000737:chemistry; D006168:Guinea Pigs; D008297:Male; D009411:Nerve Endings / Q000737:chemistry; D009412:Nerve Fibers / Q000737:chemistry*; D012007:Rectum / Q000737:chemistry* / Q000294:innervation*